Humidity

We part time and yes you will see mold and mildew. You'll find it around the window frames and other things that tend to sweat.

If it's hot then run the AC non stop. If it's wet and chilly, then the only thing to do is buy a small dehumidifier. If you want to be comfortable that's the only options I know of.

We always have a couple of fans running when it is very humid... Helps us. Nothing worse than laying in bed and having water drip on your nose from the tent bed metal supports hehe...

Running fans really helps cutting back on nose drips hehe...

Roy Ken

Hi,

Run a small heater in conjunction with running the roof air. That will help dry out your RV.

We spent three years from April - October in the mountains of western North Carolina where the temperatures were too cool for the air conditioners to run but the humidity was high. After just a month or two the first year we saw mold spots forming on the ceiling and wallpaper near the living room slide. We immediately purchased a large and extremely quiet dehumidifier which made all the difference. We ended up using it non-stop wherever we are as it really makes the indoor environment very comfortable.

Denny and Cindy Henderson
fulltimers, currently at Yogi Bear Jellystone Park at Natural Bridge Station, VA

Not a fulltimer so if ya wanna discount my thunk you are welcome to:).

Still as I understand the rudiments of mold and mildew(the early stages of mold), opening a window in wet areas or providing a lot of sun should stop growth just the same way it did for our antecedants. These types of problems were not aa big a problem in homes of old since they weren't as weather efficient.
IF mold is already in the area I'm not sure turning on an AC would be that good an idea when you think of Legionaires' disease and it's origins. I'm sure it would be fine if mold/mildew isn't present.

Were it me and I was in a high humidity locale, I'd try to keep the screen door in place, open roof vents and screened windows during the day and then turn on the AC at night. Perhaps a dehumidefier(chemical or electric) would be useful as well. JMHO.

Run the A/C unit...it will chill air and remove moisture.

Run portable fans to help keep air circulating.

I had no issue with that after spending a whole summer in Texas where it was hot and humid as ever. Never again. lol